Theoretical analysis of hough transform optimal cell size: Segmentation of nearby lines

Nowadays, Hough transform is always adopted to detect the seam-line of mosaic image. But the calculation is big, so the seam-line detection speed is affected obviously. In order to overcome this problem, a new detection method based on radon transform is proposed in the paper. First, a binary image is generated by edge detection technique, after the mosaic image has been smoothed based on mathematical morphology. Second, Radon transform is used to the binary image, and the extreme coordinates of the Radon transform result are determined. Finally, the seam-line location in mosaic image is determined by using the extreme coordinates. The theoretical analysis and experiment results show that the proposed method has very good detection performance.

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Microdiffraction Patterns of Small Metallic Particles II; Theoretical Analysis

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100055680 ◽

1982 ◽

Vol 40 ◽

pp. 668-669

Author(s):

A. Gómez ◽

P. Schabes-Retchkiman ◽

M. José-Yacamán ◽

T. Ocaña

Keyword(s):

Experimental Data ◽

Electron Diffraction ◽

Theoretical Analysis ◽

Size Range ◽

Dynamical Theory ◽

Metallic Particles ◽

Splitting Effect

The splitting effect that is observed in microdiffraction pat-terns of small metallic particles in the size range 50-500 Å can be understood using the dynamical theory of electron diffraction for the case of a crystal containing a finite wedge. For the experimental data we refer to part I of this work in these proceedings.

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Spindle scaling mechanisms

Essays in Biochemistry ◽

10.1042/ebc20190064 ◽

2020 ◽

Vol 64 (2) ◽

pp. 383-396

Author(s):

Lara K. Krüger ◽

Phong T. Tran

Keyword(s):

Cell Size ◽

Spindle Assembly ◽

Dependent Manner ◽

Post Translational Modification ◽

Size Dependent ◽

A Cell ◽

Chromosome Separation ◽

Spindle Elongation ◽

Protein Gradients ◽

Spindle Structure

Abstract The mitotic spindle robustly scales with cell size in a plethora of different organisms. During development and throughout evolution, the spindle adjusts to cell size in metazoans and yeast in order to ensure faithful chromosome separation. Spindle adjustment to cell size occurs by the scaling of spindle length, spindle shape and the velocity of spindle assembly and elongation. Different mechanisms, depending on spindle structure and organism, account for these scaling relationships. The limited availability of critical spindle components, protein gradients, sequestration of spindle components, or post-translational modification and differential expression levels have been implicated in the regulation of spindle length and the spindle assembly/elongation velocity in a cell size-dependent manner. In this review, we will discuss the phenomenon and mechanisms of spindle length, spindle shape and spindle elongation velocity scaling with cell size.

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Theoretical analysis of a monopole antenna with conducting flat disk above the earth

Electronics and Communications in Japan (Part I Communications) ◽

10.1002/ecja.1021.abs ◽

2001 ◽

Vol 84 (7) ◽

pp. 27-36

Author(s):

Aki Yuasa ◽

Daisuke Itatsu ◽

Naoki Inagaki ◽

Nobuyoshi Kikuma

Keyword(s):

Theoretical Analysis ◽

Monopole Antenna ◽

The Earth ◽

Flat Disk

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Context Aversion, Pavlovian Conditioning, and the Psychological Side Effects of Chemotherapy

European Psychologist ◽

10.1027/1016-9040.2.118 ◽

1997 ◽

Vol 2 (2) ◽

pp. 118-124

Author(s):

Geoffrey Hall

Keyword(s):

Animal Model ◽

Side Effects ◽

Theoretical Analysis ◽

Conditioned Response ◽

Behavioral Strategies ◽

Contextual Cues ◽

Anticipatory Nausea ◽

Laboratory Rats ◽

Anticipatory Nausea And Vomiting ◽

Parallel Case

Patients who have undergone several sessions of chemotherapy for cancer will sometimes develop anticipatory nausea and vomiting (ANV), these unpleasant side effects occurring as the patients return to the clinic for a further session of treatment. Pavlov's analysis of learning allows that previously neutral cues, such as those that characterize a given place or context, can become associated with events that occur in that context. ANV could thus constitute an example of a conditioned response elicited by the contextual cues of the clinic. In order to investigate this proposal we have begun an experimental analysis of a parallel case in which laboratory rats are given a nausea-inducing treatment in a novel context. We have developed a robust procedure for assessing the acquisition of context aversion in rats given such training, a procedure that shows promise as a possible animal model of ANV. Theoretical analysis of the conditioning processes involved in the formation of context aversions in animals suggests possible behavioral strategies that might be used in the alleviation of ANV, and we report a preliminary experimental test of one of these.

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